Insole-toe-cutting machine.



J. B. HADAWAY.

INSOLE TOE CUTTING MACHINE.

APPLICATION FILED 0CT.13, 1910.

Patented Feb. 17, 1914.

2 SHEETS-SHEET l.

4f@ mi #nl /y/n zgn/,4

COLUMBIA PLANOGRAPH C0..W^SruNn'roN. D. c,

J. B. HADAWAY.

INSOLE TOE CUTTING MACHINE. APPLICATION FILED 0011.13, 1910.

1,087,578, Patented Feb. 17, 1914.

2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPH co.,wAsmNsTON. D. c.

STATES nice.

JOHN B. HADAWAY, OF SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY,- A CORPORATION GF NEW JERSEY.

INSOLE-TOE-CUTTING MACHINE.

Specification o To all whom t may concern Be it known that I, JOHN B. HADAWAY, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain new and useful mprovements in Insole-Toe-Cutting Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In the manufacture of insoles it is usual to provide a lip by slitting the insole around its edge, and to provide a channel flap by cutting diagonally into the material of the insole around and toward the sole edge. in the process of sewing the welt to the insole, and in the process o-f reinforcing the insole with canvas preliminary to its use in a shoe, it is necessary that the lip and channel flap, either singly or together, be turned up from the surface of the insole. At the toe, and especially atthe tip of a pointed-toe insole, considerable ditliculty is encountered in turning up the lip and the channel flap. In turning up the lip, since the perimeter of the edge of the lip is lo-nger than its base, the lip will of necessity be puckered or crimped at the toe, which, owing to the stiffness of the leather, prevents it .from readily being turned up, and after it is turned up the crimped edge of the lip causes an objectionable bunch at the toe of the insole. The channel iap also resists being turned up since around its curve at the toe portion the perimeter of the edge of the channel flap is shorter than its base so that when the channel flap is raised at one side of the toe it will draw down or relay the channel flap at the opposite side of the toe.

One object of the present invention is to provide mechanism which shall so cut into the lip and the channel flap that they may be more easily turned up at the toe. This is accomplished in the case of the lip by transversely cutting through the lip to form a v -shaped notch therein at the point of the toe. This removes from the lip the portion which would otherwise be crimped in turning up the lip and the angle of the V-shaped cut is such that the edges of the V-shaped notch vill meet when the lip is turned up. ln order that the channel flap may be turned up, a single straight incision is made tra-nsvcrsely of the channel flap at the toe. This f Leners Patent. Patented net. r?, raie.

Serial No. 588,836.

vallows the channel to be easily opened up and the channel flap turned up since raising of the channel tiap at one side of the toe can no longer draw down the channel flap at the opposite side.

In slitting the edg-e of the insole, and in cutting the channel, the depth of the cuts is gaged from the upper or flesh side of the insole. Tn order that the notch cut in the lip and the transverse cut through the channel flap shall always be uniform with relation of the slot and channel, it is necessary'that the depth of the cuts through the lip and channel flap shall also be gaged from the upper or flesh side of the insole. l Another object of the present invention 1s to so construct the cutting mechanism that the depth of the cuts through the lip and channel 'flap shall be uniform with relation thereto regardless of the varying thickness of different insoles. in the present machine by placing the grain or finished side of the insole against a yieldable work table, and having to cooperate therewith knives for cutting into the flesh side of the insole, and a presser-foot fixed to the knife carrying head'to Hregulate the depth of cut of the knives by pressing against the flesh side of the insole and moving back the yieldable table when the knives have cut into the insole the distance that hey project beyond the face of the presseroot. f

@ther objects of t-he present invention are to provide a clutch-releasing mechanism which will automatically cause but a single tuating treadle is moved by the ope "ator, to provide adjustment for rendering said clutch operative to run the knives continuously if desired, and to provide suitable gages for positioning the insole on the work table.

With these objects in view, Ythe present invention consists in insole toe-cutting means as hereinafter described and claimed.

A machine embodying the present invention in a preferred form is illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of the head of the machine taken partly in section; Fig. 2 is a front elevation of the machine head; Fig. 3 is a rear elevation of the machine head taken partly in section alongvthe line 3 3 of Fig. l; Fig. t is a top view of the work This is accomplished cutting stroke of the knives when the ac-v table; and Fig. is a bottom view of the presser-feet and cutting knives,

rhe head 1 of the machine is mounted upon a suitable pedestal (not shown), and is formed with an overhanging arm 2 in which is mounted a reciprocating plunger 3, which bears the cutting knives to incise an insole held upon a yieldable work table. The work table consists of a flat work supporting plate 5 carried upon a plunger 6 which is slidably held in a vertical bore formed through the forwardly projecting arm Il of the machine head. The lower opening of the bore 7 is closed with a flat plate, which forms the lower abutment for a helical spring 9 which yieldably presses the plunger 6 upwardly and holds the work table in an elevated position. The upward limit of the plunger 6 is limited by the engagement with the plate 8 of the flanged head of a bolt 10, which passes through the plate 8 and engages in a screw-threaded recess in the bottom of the plunger 6. By adjusting the bolt 10 the raised position of the work supporting table under the action of the spring 9 can be fixed. The toe of an insole 11 which is placed upon the work table is positioned by a gage 12 which engages the tip of the toe and by gages and 14- which engage the sides of the toe. The gage 12 is formed with a downwardly project-ing spline 15 which is slidably received in a recess 1G formed in the work table, and the gage 12 is clamped in position by means of a clamping bolt 17, which holds it firmly to the work table. The gages 13 and lil are pivoted at 1S and 19 respectively to the work table, and have formed upon their rear ends the intermeshing segmental gears and 21 which mechanically link the gages together so that when they are positioned by means of a hand lever 22 they will have the same relative positions on either side of the insole. The gage piece 1st is slotted to receive a clamping bolt 28 by which the gage pieces 13 and 1e' are clamped in adjusted positions. The work table is held from turning with the plunger 6 as a pivot by means of guide pins 211 which are screwed to the under side of the plate 5 and are free to slide vertically in guiding recesses 25 formed in the flange 25 of the machine head.

The knife bearing plunger 3 is slidably held to the overhanging arm 2 of the machine frame by a bolted plate 27 and is arranged to be vertically reciprocated over the work table. The lower end of the plunger 3 has its front portion cut away and its rear portion is formed in a socket 28 to receive a knife block 29, upon whose lower end is formed the if-shaped cutting edge 30. The knife block 29 may be vertically adjusted relative to the plunger 3 and clamped in the socket 28 by means of a clamping bolt 31.

Fitted on the front face of the lower end of the plunger 3 is the presser-foot bar 32, which is held against a sidewise or a twisting movement by the flanges 33 formed thereon, which extend backwardly and engage a short distance over the sides of the plunger The presser bar 32 is vertically adjustable on the plunger 3 and is held clamped thereto in its adjusted position by means of a clamping bolt 3a which it receives through a slot The lower end of the presser bar 32 is bifurcated to form two presser feet 35 which are adapted to bear against the work. An ear 37 is formed upon the front face of the presser bar 32 which is bored and screwthreaded to receive a bolt 38 which engages through a slot 39 in a knife bar Z10 and clamps it to the presser bar, the slet 39 allowing for vertical adjustment of the knife bar relative to the presser bar. The lower end of the knife bar 40 is rearwardly offset to some extent so that the straight cutting edge yll, which is formed upon the lower end of the knife bar will lie between the two presser feet 3G. The arrangement of the knives and presser feet is such that the V- shaped knife 30 will engage the tip of the insole and cut out a V-shaped notch Ll2 in the lip 13 thereof, and the cutting edge al will make a straight transverse incision lll 95 across the channel flap 45, while the presser feet 3G will engage the insole at the sides of the cutting knife 42 upon the between substance 46.

rEhe vertical adjustments of the cutting edges 30 and 4-1, relative to the presser feet 36, are such that they project beyond the bottom of the presser feet 36 the distance that it is desired to cut vinto the insole.

for the cutting stroke the knives will cut into the insole a depth equal to the distance that they project beyond the presser feet Then the presser feet 3G will engage the insole and force the yieldable work table downwardly, thus insuring that the depth of cut of the knives shall always be the distance which they project beyond the presser feet 36. rlhis arrangement allows for the accommodation of insoles of varying thicknesses, since for a thick insole the presser feet will merely move the table downwardly a greater amount. The cut of the if -shaped knife at 30 is of a depth sufficient to cut through the lip of the insole without materially penetrating the feather of the insole, and the cut of the straigit-edged knife l1 is of a depth su'liicient to cut through the channel flap without materially cutting into the bottom of the channel. Sincein the manufacture of insoles the cutting of the slit and channel is gaged from the upper or flesh side of the insole, the lip and channel flap are of the same thickness even upon insoles of varying thickness so that the knives A 30 and 41, whose depth of cut is regulated from the upper or flesh side of the insole,

will cut through the lip and channel flapV uniformly on insoles of varying thicknesses.

The plunger 3 is given a reciprocatory movement by a shaft 47 rotatab-ly mounted in a bearing formed through the head of the machine. The front end of the shaft 47 bears a wrist pin 48 which is journaled in a box 49 transversely slidable across a recess cut in the rear side of the plunger 3, thus transforming the rotary motion of the shaft into a reciprocatory motion of the plunger. Upon the rear end of the shaft 47 is splined a. sleeve 50. The forward end of the sleeve 50 is formed with a circular bearing surface 51 upon whichv is loosely mounted a roll carrier 52. The roll carrier is yieldably held against rotation in one direction relatively to the sleeve 50 by springs 53 connecting it thereto. The springs 53 are secured between the pins 54 which extend laterally from the roll carrier 52 and the pins 55 which extend inwardly from the hollow flange 56 of the sleeve 50, the hollow in the flange forming a recess fo-r the reception of the springs and their holding pins. The rear end of the sleeve 50 is somewhat reduced to form a circular bearing 57 upon which is loosely mounted a power driven pulley wheel 58. The front of the pulley wheel 58 is formed with a hub whose interior is turned to form a bearing surface 59 which surrounds the portion of the sleeve 50 which lies between the bearing surfaces 51 and 57, which portion of said sleeve is formed with a plurality of cam surfaces 60. The roll carrier 52 has laterally extending fingers 61 which project between the interior bearing surface 59 of the pulley wheel hub and the cam surfaces formed on the sleeve 50. In the slots 62 between the fingers 61 of the roll carrier, are loosely carried clutching rolls 63 of such size that when these slots lie over the recessed portions of the cam surfaces 60 the rolls 63 will lie loosely between the cams and the interior bearing surface 59, but when the rolls are drawn upon the raised portions of the cam surfaces 60 they will be wedged between the cam surfaces 60 and the interior bearing 59 and form clutching members to cause the power driven pulley wheel 58 to rotate the shaft 47. The direction of pull of the springs 53 is such that the roll which at one point is provided with a single ratchet-like lug 64 facing in the direction that shaft 47 rotates. The flange 56 also has a smooth peripheral bearing surface provided at one point with a single ratchet-like lug 65 which faces oppositely to the lug 64. WV hen the clutch is in operative position and the clutch rolls engage the cam surfaces, the lugs 64 and 65 lie approximately side by side. To hold the clutch in inoperative position, the oppositely facing lugs 64 and 65 are engaged by suitable stops or dogs which hold the lugs apart, as shown in Fig. 3, in which position the springs 53 are somewhat extended and the roll carrier 52 holds the rolls over the recessed parts of the cam surfaces so that the pulley wheel 50 may run freely about the driving shaft.

The dog which engages the lug 64 on the roll carrier is preferably formed of a spring bunter 66 which is mounted upon an arm 67 pivoted at 68 to the machine head, and the bunter is normally held against the periphery of the roll carrier 52 by a springpressed plunger 69 which tends to elevate the arm 67. The bunter 66 is suitably received in a socket 70 and cushionedfby a spring 71, the tendency of the plunger to be movedA out of its socket by the spring 71 being checked by a stop pin 72. The dog which Yengages the lug 65 is formed of a stop finger 73 which is pivoted about the same centerl 68 as the arm 67. A spring-pressed plunger 74 carried by the arm 67 normally holds the stop finger 73 in engagement with the periphery of the flange 56. A pin 75 carried lby the arm 67 is adapted to en? gage against a shoulder 76.on the pivoted stop finger 7 3 and move it downwardly when the arm 67 is depressed.

The arm 67 is arranged to be pulled downwardly to free the clutch lugs from their engaging dogs by means of the latch piece 77 whose hooked end engages over. a pin 78 projecting from the side of the arm 67. The latch piece 77 is pivoted at 79 to the upper end of a slide bar 80 which is normally held elevated by a helical spring 81 but which is adapted to be depressed and draw the latch piece 77 downwardly by means of a lever 82 whose rear end bears teeth 83 meshing with a rack 84 on the bar 80, the lever 82 being drawn downwardly by a rod 85 running to a treadle conveniently attached to the base of the machine pedestal. The operator by depressing the treadle may thus at any time release the dogs from the clutch and cause the power-driven pulley wheel to actuate the cutting knives. The pivoted latch piece is normally held in engagement with the pin 78 by means of a spring-pressed plunger 86 held in a recess formed in the upper end of the slide bar 80 and engaging under the shoulder 87 of the latch piece 77. To release the latch 77 from the pin 78, a stop piece 88 is pivoted at 89 to the machine frame and arranged to be held by means of an adjusting screw 91 in the path of a shoulder 90 formed upon the side of the latch piece 77 opposite to the shoulder 8.7. lll/*hen the treadle-operated bar 8O is moved downwardly, the latch piece 77, by its engagement with the pin 7S, will draw down the lever GT. However, near the downward limit of the movement of the slide har S0, the shoulder 90 will be brought against the step piece 88 which will force the pivoted latch piece 77 over against the pressure of the spring 86, releasing the pin i8 and allowing the lever 57 to move upwardly under the action ofthe spring-pressed plu-ger (lil, rllhus it will be seen that the actien of the pivotal latch 7.7 and the stop 88 is such that when the treadle is depressed the lever arm GT will lirst be moved downwardly and then immediately be released te fly back to its upward position. "When it is desired that the arm G7 be held down as long as the treadle is depressed and the dogs held out of engagement with the clutch lugs, the adjusting screw 91 is turned outwardly to allow the stop S8 to drop out of the path of the shoulder Q0, so that when the treadle is depressed lthe latch 77 will no longer be tripped but will b-e held in engagement with the pin '78.

rl`he operation of the machine is as follows: lllhen the clutch is in its inoperative position, as shown in Fig. 3, (the normal direction of rotation of the pulley wheel being indicated by the arrow) the operator places the insole which is to be cut upon the work table and depresses the foot treadle. This moves the har 8O and latch 77 downwardly, the latch 77 drawing down the arm 67 and retracting the spring bunter GG and the stop finger 73 from the lugs (Sil and The roll carrier 52, now being free, will be turned by the springs 3B to bring the rolls 68 upon the raised portions of the cam surfaces G where they are gripped between the bearing surfaces l) and the cams to cause the pulley wheel 58 to turn the shaft 47. After the arm (3T has been moved downwardly far enough to have rch sed the clutch lugs @4f and the latch 77 is tripped and the arm (l allowed to spring upwardly, so that the spring bunter ($6 ano the stop linger l2 will be held against the peripheral bearing surfaces of the roll carrier and the flange 5G in a position to engr-,ge the clutch lugs (ist and at the end of a single revolution. 'W hen the shaft has completed a single revolution, the lug will strike against the sp bunter GG and arrest the mov ,nent of inc roll carrier 52, which will hold the rolls stationary while the continued movement of the shaft and sleeve will carry on the cam surfaces until their recessed portions are under the rolls G3, thus freeing the rolls from their wedging engagement and releasing the clutch to allow the pulley to turn freely about the sleeve 5 The movement of the shaft will be check-ed by action of the springs 53, but not, hovever, until the shaft and sleeve are turned by their angular momentum enough to carry the lug C5 beyond the end of the finger 73, which will spring up and engage behind the lug and prevent the return movement of the sleeve 50, so that the springs are left soniewhat extended and the rolls G3 held in their inoperative position. The plunger' 3 has now made a single cutting stroke, and the operator places another insole upon the work table and again depresses the treadle, whereupon the cutting operation is repeated, the automatic release of the clutch allowing but asingle cutting stroke to be made into the insole. lf, however, the operator desires that the machine shall run continuously, the screw 91 is loosened to remove the stop piece SS from the path of the shoulder 90 and the treadle held down, whereupon, since the dogs are held out of engagen'ientwith the clutch lugs, the machine will run continuously until the operator releases vthe treadle. lt is obvious from an inspection of the clutch and its engaging dogs that the stop linger T3 would perfo 1m its function without the employment of the pin 75 to depress it when the arm 67 is lowered. The us-e of pin 'T5 is, however, desirable, since when the machine is running continuously the depression of the fin ger F3 will remove it from the path of the ratchetslike lug and obviate any pounding between them.

lWhile a preferred form of clutch is illustrated, it is to be understood, however, 'that any other suitable form of clutch may be used which will properly eo-perate with the improved device forl releasing it at the end of a single revolution.

ln the above-described machine embodying a preferred form of the invention, the work table is made yieldable and a positive movement given to the cutting knives and presser-foot. lhe employment of a strueture in which the work table is fixed and in which yieldingmeans is interposed between the knives and presser-feet on one hand and the driving' means on the other hand, so that the movement of the knives relative 'to the insole may be arrested upon the engagement of the presser-feet with the surface of the insole, is contemplated within the spirit of the present invention.

ln the embodiment of the invcntimi as illustrated in the accompanying drawings, two knives are shown, one to cut the lip and the other to cut. the channel flap. These knives are made removable, and it is to be understood that the use of either one of the knives singly to cut either the lip or the channel flap is contemplated within the spirit of the present invention. It is also to be understood that the present invention contemplates varying the position, size, and shape of the cutting knives to accommodate insoles of varying shape or size, or for cutting notches or slits of different shape therein.

The above disclosed machine in which the present invention is illustrated as embodied, is shown and described as operating upon an insole on which had been previously formed the lip and the channel flap. The operation of this machine in making its incisions into the insole may be equally well performed upon an insole before the lip and channel flap are formed, as it will be obvious thatthe resultant condition of the insole will be the same in whichever order the operation of edge slitting and channeling and the operation performed by the above described machine, be performed. The words in the specification and in the appended claims describing the operation of one knife as cutting a notch from the lip of the insole and of the other knife as incising the channel flap, are to be understood as words of description of the location of the cuts on the insole, and not as words of limitation to restrict the operation of these knives as making their cuts after the lip and channel Hap have been formed, as it is obvious that the relative location of these cuts will be the same upon an insole in which the edge slit and the channel have not previously been cut.

Having thus described the present invention, what is claimed is:

1. An insole toe cutting machine, having, in combination, a work table, two powerdriven knives to coperate therewith, one of said knives being arranged to incise the lip of an insole placed on the work tablevand the other of said knives being arranged to incise the channel ap of said insole, and gaging means to position the insole with relation to the knives.

2. An insole toe cutting machine, having, in combination, a work table, two powerdriven knives to coperate therewith, one of said knives being arranged to cut out a notch from the lip of an insole placed on the work table, and the other of said knives being arranged to incise the channel flap of said insole, and gaging means to position the insole with relation to the knives.

3. An insole toe cutting machine, having, in combination, a work table, a reciprocating head to coperate therewith bearing both a V-shaped knife for notching the lip of the insole held on the work table, and a knife for incising the channel flap of said insole, and gaging means to position the insole with relation to the knives.

4t. An insole toe cutting machine, having, in combination, a work table, a reciprocating head to coperate therewith bearing both a V-shaped knife for notching the lip of an insole held upon t-he work table and a second knife for incising the channel liap of said insole, a continuously running driving means, a manually-operable clutch for connecting said driving means to the reciprocating head, means for automatically vreleas- Y ing the clutch after a single reciprocation of said head, and gaging means to position the insole with relation to the knives.

5. An insole toe cutting machine, having, in combination, a work table, a reciprocating presser-foot coperating therewith to engage an insole held on the work table, a cutting knife moving with and projecting beyond the presser-foot to incise said insole, and yieldable means fo-r arresting the movement of the knife relative to said insole upon the engagement of the presser-foot with the insole, whereby the dept-h of the incision of the knife shall be determined by the distance that the knife projects beyond the presser-foot.

l6. An insole toe cutting machine, having, in combination, a yieldable work table, a reciprocating head to coperate therewith, a presser-foot mounted on said head to engage an insole held on the yieldable work table, and a cutting knife mounted on said head and projecting therefrom beyond the presser-foot to incise said insole, whereby the depth of the incision of the knife shall be determined by the distance that the knife projects beyond the presser-foot.

7. An insole toe cutting machine, having, in combination, a yieldable work table, a reciprocating head to coperate therewith, a presser-foot mounted on said head to engage an insole held on the yieldable work table, a cutting knife mounted on said head and projecting therefrom beyond the presserfoot to incise said insole whereby the depth of the incision of the knife shall be determined by the distance that the knife projects beyond the presser-foot, and means for adjusting the positions of the presser-foot and knife relative to each other to vary the depth of the incision of the knife.

8. An insole toe cutting machine, having, in combination, a work table to support the insole to be cut, a spring pressing said table upwardly, means to limit the upward movement of said table under the action of the spring, a presser-foot adapted to engage the insole andv depress the table, and a knife moving with and projecting beyond the presser-foot to make an incision in the upper surface of the insole of a depth equal to the distance that the knife projects beyond the presser-foot.

9. An linsole toe cutting machine having, in combination, a work table for supporting an insole, a reciprocating plunger bearing a cutting knife for incising the insole held upon the work table, said partel being so arranged that the knife makes an incision extending only partly through the insole, a rotatalily mounted shaft having a crank engaging the plunger to impart a single reciprocation to the plunger for each rotation of the shaft, a power-driven pulley wheel loosely mounted on the shaft, a clutch constantly tending to lock the pulley wheel to the shaft but normally held in an inoperatife position, and means arranged to be ini tially set in operation by the operator but afterward at ing automatically to allow the clutch to instantaneously lock the pulley wheel to the shaft, irrespective of the position of the pulley wheel on the shaft to render the clutch inoperative at the end of a single revolution of the shaft and to arrest the shaft with the plunger in raised position.

l0. An insole toe cutting machine having, in combination, a work table for supporting an insole, a reciprocating plunger bearing a cutting knife for incising the insole held upon the work table, said parts being so arranged that the knife makes an incision extending only partly through the insole, a rotatably mounted shaft having a crank engaging the plunger to impart a single reciprocation to the plunger for each rotation of the shaft, a power-driven pulley wheel loosely mounted on the shaft, and means under the control of the operator for looking the pulley wheel to the shaft and afterward acting automatically to unlock the pulley wheel from the shaft at the end of a single revolution and to arrest the shaft with the plunger in raised position.

ll. An insole toe cutting machine having, in combination, a work table for supporting an insole, reciprocating plunger bearing a cutting knife for incising the insole held upon the work table, Said parts being so arranged that the knife makes an incision only partly through the insole, a rotatably mount ed shaft having a crank engaging plunger to impart a. single reciprocation to the plunger for each rotation of the shaft, a power driven pulley wheel loosely mounted on the soaft, and means under the control of the ope 'ator for locking the pulley wheel to the shaft and afterward acting automatically to unlock the pulley wheel from the shaft at the end of a single revolution and to arrest the shaft with the plunger in raised posit-ion comp 1ising a spring against which the momentum of the shaft is expended when it is arrested.

l2. An insole toe cutting machine having, in combination, two work engaging menbers, namely a work table and acooperating presser foot, the presser foot bearing a cutting knife rigidly mounted thereon and projecting beyond the work engaging face of the presse-r foot to incise said insole, means for relatively reciprocating the work table and presser foot in a direction at right angles to the surface of the work table in order to engage and clamp an insole be tween them and cause said cutting knife to make an incision in the insole having the outline of the knife edge and extending into and partially through the insole at right angles to its surface, and a yielding mounting for one of said work engaging members to cause the movement of the knife relatively to the insole to be arrested upon the engagement of the presser foot with the insole whereby the depth of the incision of the knife is determined by the distance that the knife projects beyond the presser foot.

JOHN B. -IADi-VAY.

litnesses Geenen E. Srninns, ANNIE C. RICHARDSON.

Copie: of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C." 

